That "Unity look" is the result of so many new developers using the same Unity Engine default materials, assets, lighting effects, and shaders in their games.

The cross-platform game development engine Unity has gained improved support for more widely varying hardware and software configurations, as well as new shaders for terrain and foliage and ...

The Mac OS X game development engine Unity gains new full-screen graphics effects, handles new workflow tools and sports new character-related features in a forthcoming 1.2 update.